Diaro is described as 'is designed to record your activities, daily events, appointments, experiences, thoughts, secrets and ideas throughout the day and sync data across all your devices. It is the easiest and most secure way to keep a diary' and is an app in the Office & Productivity category. There are more than 100 alternatives to Diaro for a variety of platforms, including Android, iPhone, Windows, iPad and Mac. The best alternative is Joplin, which is both free and Open Source. Other great apps like Diaro are Standard Notes (Freemium, Open Source), Evernote (Freemium), CherryTree (Free, Open Source) and Trilium Notes (Free, Open Source).
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor.
Colorful & powerful sticky notes app for Windows & Phones. Set reminder alarms, attach them to any website or document, organize them using folders/tags, sync sticky notes between devices & send notes across LAN or to any contact across the globe.
RedNotebook is a graphical diary and journal helping you keep track of notes and thoughts. It includes a calendar navigation, customizable templates, export functionality and word clouds. You can also format, tag and search your entries.
The notes app for creative work. For the research, thinking and planning behind your next great piece of work. # Collect your thoughts Milanote is a place to put it all together. See your ideas, notes and research side by side.